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Re: [Duplicity-talk] Remote S3 backups not the same size as source?
From: |
edgar . soldin |
Subject: |
Re: [Duplicity-talk] Remote S3 backups not the same size as source? |
Date: |
Sun, 22 Dec 2013 14:26:28 +0100 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 |
On 22.12.2013 09:21, Brandon wrote:
> I am using “duply”, a simplified front-end program to duplicity. I am backing
> up all contents of a directory, amongst others, /mnt/Data/Email, to an Amazon
> S3 bucket. There are a total of 83 GB in files. However, when I first ran the
> backup operation, it backed up approximately 37 GB and then said it was
> complete. I figured something went wrong so I then ran the backup operation
> (incremental) again and it backed up another 1.2 GB even though I had not
> modified, removed or added any files to the directory to be backed up. I
> thought something might have been interrupting it so I ran it yet again for
> the third time but that and all subsequent backup runs backed up nothing else
> (except the 104 byte accounting file or whatever). It is not backing up any
> more than 38.2 GB of 83 GB of files. I have verified and the number of files
> in the S3 directory, multiplied by 25 MB (the size of each difftar spanning
> archive file), and indeed it has backed up just 38.2 gigabytes.
>
> What gives here? Why is it not backing up all 83GB? Is there some kind of
> compression going on (although it would still be more than 38.2 GB because I
> have most of my content already compressed)? For whatever reason duplicity
> does not seem to be backing everything up and this worries me.
>
> Also, another directory, /mnt/Data/Organized, is 5.1 GB (according to du -hs)
> yet duply/duplicity says source is 4.94 GB. This is extremely close, and may
> just be a matter of accounting and such, and may be correct. However the
> /mnt/Data/Email is off by over 42 gigabytes!
>
> What can I do to remedy this?
>
run your backup with maximum verbosity '-v9'. can be lot's of info though.
run 'verify' to see differences to the local data.
make sure you did not exclude anything erronously.
..ede/duply.net